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Finding the Fourth Proportional to 447,030.40, 671,323.20 and 237,078.40

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Solution

The fourth proportional to 447,030.40, 671,323.20 and 237,078.40 is: 356,029.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,030.40 : 671,323.20 = 237,078.40 : x
  2. Step 2: Convert to fraction form
    447,030.40/671,323.20 = 237,078.40/x
  3. Step 3: Cross multiply
    447,030.40x = 671,323.20 × 237,078.40
  4. Step 4: Simplify right side
    447,030.40x = 159,156,230,138.88
  5. Step 5: Solve for x
    x = 159,156,230,138.88/447,030.40
  6. Step 6: Final answer
    x = 356,029.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.